Who composed What A Diff'rence A Day Made?

What A Diff'rence A Day Made was composed by Maria Grever. It is a swing standard in 2/2 time.

What key is What A Diff'rence A Day Made in?

The original key of What A Diff'rence A Day Made is F. The form is ABAC with 33 bars.

What scales work for improvising over What A Diff'rence A Day Made?

Recommended scales for What A Diff'rence A Day Made in F: bebop, bebop major. Scales and arpeggios update in real-time as each chord plays, with context-aware analysis (e.g., Phrygian Dominant over secondary dominants).

How does the interactive backing track work?

The backing track plays with realistic walking bass, drum patterns, and voice-led chord voicings. Scales and arpeggios update in real-time as each chord plays. You can limit the fretboard zone for close-proximity voicings, toggle a reference melody, loop any section, and choose between multiple sound presets. Works for guitar, piano, bass, ukulele, and 7 more instruments.

Can I edit the chord chart?

Yes. You can modify the structure, chords, and arrangement of any standard to match your preferred version or create your own reharmonization.

What A Diff'rence A Day Made in F

Maria Grever()swingRelaxed

Do Re MiC D E

Section A

♬

C7♯5

Section B

♬

Section A

♬

C7♯5

Section C

♬

BPM: 120

Chord Diagrams — What A Diff'rence A Day Made in F (Guitar)

Display

FingerNoteDegree

Chord Voicings Closest Voicing

C7♯5

What A Diff'rence A Day Made in F

F major is the gateway to barre chords. While F itself requires a full barre at fret 1, the remaining diatonic chords (C, Dm, Am, G, Bb) mix open and barre shapes. The open high E acts as Fmaj7's seventh, adding unexpected richness. F is a intermediate-level key on guitar because the open high E string is the major seventh of F, creating a lush Fmaj7 resonance even in basic shapes, but the F barre chord itself is the first big hurdle for beginners. This key mixes open and barre shapes, making it a good intermediate challenge that builds fretboard fluency.

Voice Leading

The bass line moves through G to C (ascending perfect fourth), C to F (ascending perfect fourth), F to G# (ascending minor third), G# to C (ascending major third), C to E (ascending major third), E to A (ascending perfect fourth), A to D (ascending perfect fourth), D to G (ascending perfect fourth), G to C (ascending perfect fourth), C to F (ascending perfect fourth), F to A# (ascending perfect fourth), A# to A# (ascending unison). The root motion by larger intervals (fourths and fifths) gives each chord change a strong, decisive character. When the progression loops, the bass returns from A# to G by minor third.

Scales for Improvisation

F major pentatonic works because every note is either a chord tone or a safe passing tone — there are no avoid notes. For soloing, this means you can play freely without clashing. Over dominant seventh chords, F Mixolydian adds the flat seventh for an authentic blues-rock edge.

swing2/2 · 33 bars · Form: ABAC

Chords: Gm7, C7, F, G♯dim7, C7♯5, Em7, A7, Dm7, G7, Cm7, F7, A♯Maj7, A♯m6.

Scales for Improvisation F bebop, F bebop major.

Diatonic chords: See all chords in the key of F